Everthing I need to know about Filament Extruder
hello awesome people! I recently was looking for business ideas and came across Dave’s extruder. I’m now thinking of setting up a small business of selling 3D Printer Filament. Before I start building the machine tell me everthing I need to know about 3D printer filament and the extruder. Every small detail counts so just go for it. Also is there any better machine than that of Dave’s? If yes, why? Can I make market standard filament without the added mods, i mean just using the extruder? Please reply if you know anything about 3D Filament business
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@sharma-sagar Yes, PLA is hygroscopic
The amount of filament per hour depends on the type of plastic you are melting. The lower melting point, the faster you can extrude the filament.
With Dave’s extruder, you might be able to extrude 1kg of filament per hour if the plastic has a low melting point (pla). For ABS, PET or filaments with a high melting point, extruding takes longer because you have to reduce the extruding speed of the motor.
Extruding speed depends on several factors: Plastic melting temperature, motor revolutions (extruding speed), size of the output nozzle, temperature of your heating element and how fast can it get to the desired temperature.
I recommend the water cooling method only for plastics that are not hygroscopics, otherwise you will ruin your filament
won’t water turn the polymer brittle?
hey @marcelozp is possible to use Filament width sensor by Flipper on Thingiverse with Dave’s extruder? I mean Dave extruder has no electonic parts (except for PID and all). Will the sensor be able to alter the feed in the hopper if the diameter is not as expected? Also will a CPU fan be adequate to cool the filament placing in right after the extruder like in Noztek extruder, shown in picture below
First of all you need do know what material you will use (ABS, PLA, etc.). Usually they come in 2 diameters 1,75 and 3mm. To do it with precision you will need a cooling process and some mechanical thing to pull the material with variable velocity, this will determinate the diameter
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